Surf Forecasts:
How big are the waves at Porth Ceriad today (21 Aug):
- Afternoon surf: Afternoon surf (21 Aug, local time) - 1.5ft (0.5m), 6s period with SW swell.
- Evening surf: Evening surf (21 Aug, local time) - 1.5ft (0.4m), 6s period with SW swell.
The current surf forecast for Porth Ceriad at 12AM is: 0.4m 6s primary swell from a Southwest direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 06:00pm August 20). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | - | - |
| Afternoon (21 Aug) | 1.5ft (0.5m) | 6s |
| Evening (21 Aug) | 1.5ft (0.4m) | 6s |
Table - waves today at Porth Ceriad. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Fri morning. Very mild (max 17°C on Fri afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the NNE by Fri afternoon). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 14 | SW 14 | W 14 | NW 5 | W 16 | W 16 | W 16 | W 16 | W 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 19 | 10 | 10 | 9 | 8 | 7 | 7 | 24 | 7 | 7 | 7 | 7 | 7 | 10 | 9 | 8 | 9 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | off | off | off |
High Tide | 2:05PM3.11m | 2:38AM2.96m | 3:15PM2.85m | 4:06AM2.73m | 4:55PM2.79m | ||||||||||||||
Low Tide | 8:46PM1.43m | 9:17AM1.59m | 10:04PM1.63m | 10:53AM1.71m | |||||||||||||||
 | |  |  |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 8:34 | — | — | — | — | — | — | — | 8:31 | — | — | — | — | — | — | — | 8:30 | — |
mm | — | — | — | — | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 14 | 13 | 13 | 14 | 15 | 16 | 17 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 14 | 14 |
Feels °C | 8 | 9 | 10 | 9 | 8 | 9 | 10 | 12 | 14 | 12 | 11 | 11 | 9 | 10 | 10 | 10 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 6 | WSW 6 | NW 5 | WSW 6 | SW 6 | SW 6 | SW 13 | SW 13 | SW 13 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 19 | 10 | 10 | 9 | 4 | 4 | 3 | 24 | 3 | 1 | 1 | 7 | 7 | 6 | 9 | 8 | 9 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | W 8 | SW 14 | SW 13 | WSW 6 | SW 13 | SW 13 | SW 13 | SW 6 | W 6 | SW 16 | W 6 | W 6 | SW 12 | W 12 | W 12 |
| kJ | 8 | 8 | 8 | 8 | 1 | 7 | 7 | 3 | 7 | 7 | 7 | 1 | 1 | 10 | 1 | 1 | 6 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | W 14 | W 14 | SW 14 | — | W 14 | SW 13 | W 16 | W 16 | W 16 | W 16 | W 16 | W 6 | — | W 10 | W 6 | — | W 15 |
| kJ | — | — | 4 | 4 | 8 | — | 4 | 7 | 5 | 5 | 5 | 5 | 5 | 1 | — | 2 | 1 | — | 4 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NW 5 | — | NW 5 | NNW 4 | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | NNW 4 |
| kJ | 72 | 55 | 23 | 20 | 24 | 32 | 35 | — | 13 | 12 | 12 | 14 | 17 | 14 | 10 | 9 | 14 | 13 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 785 | 200 | 139 | 138 | 125 | 125 | 138 | 306 | 308 | 141 | 133 | 200 | 181 | 133 | 125 | 189 | 306 | 306 | 189 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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